On Sun, Aug 31, 2014 at 12:07:38PM -0400, Terry Moore wrote:
>
> This is not 2.5G Transfers per second. PCIe talks about transactions rather
> than transfers; one transaction requires either 12 bytes (for 32-bit
> systems) or 16 bytes (for 64-bit systems) of overhead at the transaction
> layer, pl
>From Emmanuel Dreyfus
> You are right;
> # pcictl /dev/pci5 read -d 0 -f 1 0xa8
> 00092810
> # pcictl /dev/pci5 write -d 0 -f 1 0xa8 0x00094810
> # pcictl /dev/pci5 read -d 0 -f 1 0xa8
> 4810
That's reassuring. The dump confirms that we're looking at the right
registers, thank you.
As I read
> -Original Message-
> From: Hisashi T Fujinaka [mailto:ht...@twofifty.com]
> Sent: Sunday, August 31, 2014 12:39
> To: Terry Moore
> Cc: tech-kern@netbsd.org
> Subject: RE: FW: ixg(4) performances
>
> I may be wrong in the transactions/transfers. However, I th
Hi, Emmanuel.
On 2014/09/01 11:10, Emmanuel Dreyfus wrote:
> Terry Moore wrote:
>
>> Since you did a dword read, the extra 0x9 is the device status register.
>> This makes me suspicious as the device status register is claiming that you
>> have "unsupported request detected)" [bit 3] and "co
Terry Moore wrote:
> Since you did a dword read, the extra 0x9 is the device status register.
> This makes me suspicious as the device status register is claiming that you
> have "unsupported request detected)" [bit 3] and "correctable error
> detected" [bit 0]. Further, this register is RW1
Oh, and to answer the actual first, relevant question, I can try finding
out if we (day job, 82599) can do line rate at 2.5GT/s. I think we can
get a lot closer than you're getting but we don't test with NetBSD.
--
Hisashi T Fujinaka - ht...@twofifty.com
BSEE + BSChem + BAEnglish + MSCS + $2.50 =
rate is not used
when talking about the max data transfer rate.
On Sun, 31 Aug 2014, Terry Moore wrote:
-Original Message-
From: Hisashi T Fujinaka [mailto:ht...@twofifty.com]
Sent: Saturday, August 30, 2014 21:29
To: Terry Moore
Cc: tech-kern@netbsd.org
Subject: Re: FW: ixg(4) perform
> -Original Message-
> From: Hisashi T Fujinaka [mailto:ht...@twofifty.com]
> Sent: Saturday, August 30, 2014 21:29
> To: Terry Moore
> Cc: tech-kern@netbsd.org
> Subject: Re: FW: ixg(4) performances
>
> Doesn't anyone read my posts or, more important,
Doesn't anyone read my posts or, more important, the PCIe spec?
2.5 Giga TRANSFERS per second.
On Sat, 30 Aug 2014, Terry Moore wrote:
Forgot to cc the list.
-Original Message-
From: Terry Moore [mailto:t...@mcci.com]
Sent: Friday, August 29, 2014 15:13
To: 'Emmanuel Dreyfus'
Subject:
